Surgical Ventricular Restoration Procedure:
Surgical ventricular restoration (SVR), also known as the Dor procedure, left ventricular reconstruction, and surgical anterior ventricular endocardial restoration (SAVER), is a procedure designed to restore or remodel the left ventricle to its normal, spherical shape and size in patients with akinetic segments of the heart, secondary to either dilated cardiomyopathy or post-infarction left ventricular aneurysm. In general, SVR is delayed for at least 3 months after myocardial infarction to allow the healing of infarcted tissue. It is usually performed after coronary artery bypass grafting (CABG) and may proceed or be followed by mitral valve repair or replacement. A principal difference between SVR and ventriculectomy (i.e., for aneurysm removal) is that in SVR the ventricle is reconstructed using patches of autologous or artificial material that are placed to close the defect while maintaining the desired ventricular volume and contour. In addition, SVR is distinct from partial left ventriculectomy (Batista procedure), which does not attempt to specifically resect akinetic segments and restore ventricular contour.